Distinguished Professor of Business Analytics

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Modeling

Shmueli et al. (2005) revived a useful discrete distribution called the COM-Poisson (the Conway–Maxwell–Poisson) and introduced its statistical and probabilistic properties. This distribution is a two-parameter extension of the Poisson distribution that generalizes some well-known discrete distributions (Poisson, Bernoulli and geometric).

Here's another neat use of the COM-Poisson distribution (a distribution for count data that includes as special cases Poisson, Bernoulli, and geometric distributions): a count data process! Useful for count data that are over- or under-dispersed.
Our co-authored paper Bridging the Gap: A Generalized Stochastic Process For Count Data (with Li Zhu, Kim Sellers and Darcy Morris) is now published in The American Statistician.

My paper (with discussion by 4 sets of authors and a rejoinder) that just came out in Quality Engineering, is aimed at introducing the community of industrial statisticians to the different challenges, opportunities and issues in analyzing "Big Behavioral Data" (BBD).

Linear regression is among the most popular statistical model in social sciences research. Linear probability models (LPMs), which are linear regression models applied to a binary outcome, are commonly used for various reasons, despite criticisms of such usage.

This weekend an important paper that I co-author with Hank Lucas and Mingfeng Lin has been accepted to the prestigious journal Information Systems Research. The paper, entitled "Too Big to Fail: Large Samples and the P-Value Problem" describes a critical challenge that occurs in modeling large samples. Publications in fields such as Information Systems as well as other social sciences have begun to rely on very large samples for testing theories.

On Nov 25 Prof Shmueli presented her work on "A Flexible Regression Model for Count Data" (joint work with Prof Kimberly Sellers, Georgetown University) at the Indian Statistical Institute in Kolkata, India. During her visit with the Bayesian Interdisciplinary Research Unit there, she also visited the Mahalanobis museum.